两种Rayleigh波频散曲线计算方法对比研究  

Comparison of Two Methods for Calculating Rayleigh Wave Dispersion Curves

作　　者：郑鑫[1] 庞惟肖 薛辉[1] 张荣花[1] 葛建锐[1] 

机构地区：[1]黑龙江八一农垦大学,大庆163319

出　　处：《黑龙江八一农垦大学学报》2018年第1期51-54,共4页journal of heilongjiang bayi agricultural university

基　　金：黑龙江省教育厅科学技术研究面上项目(12531441)

摘　　要：Rayleigh波频散曲线是场地速度结构反演的重要前提,其准确性决定了无损法检测场地速度结构的精确程度。为寻求准确计算Rayleigh波频散曲线的方法,利用Knopoff法和标量传递法分别计算两种典型地质模型的基阶和4个高阶Rayleigh波频散曲线,并进行比较,结果表明,两种方法基阶频散曲线吻合较好,高阶频散曲线相差较大。基阶频散曲线可用于场地速度结构反演。The Rayleigh wave dispersion curve was an important prerequisite for inversion of site velocity structure, and its accuracy determined the accuracy of the non-destructive method to detect the speed structure of the site.In order to find the exact method of calculating the Rayleigh wave dispersion curve,the Knopoff method and the scalar transfer method were used to calculate the fundamental order and four high order Rayleigh wave dispersion curve of the two typical geological models.the Knopoff method and the scalar transfer method were compared.The results showed that the fundamental order dispersion curve of two methods were in good agreement with each other and higher order dispersion curve of two methods were different.The fundamental order dispersion curve could be used to invert site velocity structure.

关 键 词：RAYLEIGH波 频散曲线 Knopoff法 标量传递法 基阶 

分 类 号：TU195[建筑科学—建筑理论]